The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

LS short box · 02-15-2020, 02:57 PM

I am very happy with the tune from Frost. I gave him my tire diameter, gear ratio and told him at what mph to shift into 4th and lock up. Again is spot on. Under light throttle shifts were firm but smooth. Under full throttle nice and firm. Idle was good. Doesn't hunt or surge. The best fuel we can get around here is 91 octane so that's what he tuned for. No doubt if I put on a chassis dyno we could a few hp. Last summer it did 22 mpg on the highway a number of times.

02-15-2020, 02:57 PM	#19
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,926	Re: Looking for a tuner I am very happy with the tune from Frost. I gave him my tire diameter, gear ratio and told him at what mph to shift into 4th and lock up. Again is spot on. Under light throttle shifts were firm but smooth. Under full throttle nice and firm. Idle was good. Doesn't hunt or surge. The best fuel we can get around here is 91 octane so that's what he tuned for. No doubt if I put on a chassis dyno we could a few hp. Last summer it did 22 mpg on the highway a number of times.